CN208826239U - A kind of spherical mirror spherical surface corase grinding device - Google Patents
A kind of spherical mirror spherical surface corase grinding device Download PDFInfo
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- CN208826239U CN208826239U CN201821392599.8U CN201821392599U CN208826239U CN 208826239 U CN208826239 U CN 208826239U CN 201821392599 U CN201821392599 U CN 201821392599U CN 208826239 U CN208826239 U CN 208826239U
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Abstract
The utility model relates to a kind of spherical mirror spherical surfaces to roughly grind device, belong to optical glass producing equipment technical field.Spherical mirror spherical surface corase grinding device is made of rack, clamper and sander；Clamper and sander are obliquely provided in rack: the clamper is made of slide, driving motor, eyeglass collet and push cylinder；Slide is equipped with by the cross slide way sliding of skewed setting in rack；Slide side is equipped with push cylinder；The piston rod of push cylinder is connect with slide；Transmission shaft is equipped with by bearing block on slide；One end of transmission shaft is equipped with eyeglass collet；The transmission shaft other end is connect by rotary joint with extraneous air compression system；By driving motor equipped with driving gear on the slide of transmission shaft side；The transmission gear assembled on driving gear and transmission shaft engages connection.
Description
Technical field
The utility model relates to a kind of spherical mirror spherical surfaces to roughly grind device, belong to optical glass producing equipment technical field.
Background technique
In optical mirror slip manufacturing field, after spherical mirror green body is produced, roughly ground, it is middle mill and fine grinding etc. multiple tracks
It just can be carried out factory sale after polishing operation.Although existing spherical mirror corase grinding device realizes mechanization polishing, relative to people
Work polishing substantially increases production efficiency；Reduce labor intensity.But existing spherical mirror corase grinding device is due to reasons in structure
Limitation, has the problem of can only polishing single model spherical mirror, is not able to satisfy the needs of enterprise's production and application；Therefore
It is necessary to research and develop a kind of corase grinding device, to solve the problem above that existing corase grinding device has.
Summary of the invention
The purpose of this utility model is that: it is simple, easy to use to provide a kind of structure, has to solve existing corase grinding device
Polishing problem can only be carried out to single model spherical mirror spherical mirror spherical surface corase grinding device.
The technical solution of the utility model is:
A kind of spherical mirror spherical surface corase grinding device, it is made of rack, clamper and sander；Obliquely it is arranged in rack
There are clamper and sander；It is characterized by: the clamper is by slide, driving motor, eyeglass collet and push cylinder structure
At；Slide is equipped with by the cross slide way sliding of skewed setting in rack；Slide side is equipped with push cylinder；Push cylinder
Piston rod is connect with slide；Transmission shaft is equipped with by bearing block on slide；One end of transmission shaft is equipped with eyeglass collet；Transmission shaft is another
One end is connect by rotary joint with extraneous air compression system；Sliding tooth is equipped with by driving motor on the slide of transmission shaft side
Wheel；The transmission gear assembled on driving gear and transmission shaft engages connection.
The transmission shaft is internally provided with venting flow path, and one end of venting flow path passes through rotary joint and extraneous pneumatics system
System connection；The other end of venting flow path is connected to eyeglass collet.
The eyeglass collet is made of mounting bedplate, clamping jaw, fastening spring and resetting piston；One end of transmission shaft is fixedly mounted with
There is mounting bedplate；The front end face of mounting bedplate is equipped with multiple clamping jaws in divergent shape sliding by guide chute and guide runner；Respectively
It is respectively in be oppositely arranged plunger shaft on the inside of guide chute；Piston is equipped with by the resetting piston of activity installation in each plunger shaft
Pull rod；One end of pitch brace extends to inside guide chute and is fixedly connected with guide runner；Leading above each guide runner
Fastening spring is provided with into sliding slot；The inside of each plunger shaft passes through air passage respectively and is connected with the venting flow path of transmission shaft.
Guide runner is fixed with inside each clamping jaw；Each clamping jaw is slidably mounted on by guide runner and guide chute
The front end face of mounting bedplate；The fan-shaped structure of each clamping jaw；Grip flange is provided on the outer end periphery of each clamping jaw；Each clamping jaw
Between arrangement formed it is circular；The surface of each clamping jaw is provided with inner concave arc surface.
The sander is made of assembly pivoted frame, polishing motor, grinding head, reversing shaft, tumbler gear and positioning gear；
By the support shaft being fixedly mounted with and bearing block activity equipped with assembly pivoted frame in rack；The upper end for assembling pivoted frame is equipped with by motor of polishing
Grinding head；Grinding head is in be oppositely arranged with eyeglass collet；Reversing shaft is equipped with by the adjusting seat rotation being fixedly mounted on assembly pivoted frame；It changes
To in the adjusting seat of axis upper end side by bearing block equipped with adjustment bar；The one end for adjusting bar passes through taper gear pair and reversing shaft
Upper end be connected；The other end of adjustment bar is fixed with adjustment handwheel；The lower end of reversing shaft passes through the arc through hole in rack
The side of support shaft is extended to afterwards；The lower end of reversing shaft is fixed with tumbler gear；The positioning being fixedly mounted on tumbler gear and support shaft
Gear engagement connection.
The arc center of the arc through hole and the center of support shaft coincide.
The grinding head is in bowl structure；The inner surface of grinding head is provided with polishing spherical surface.
Utility model has the advantages that
The clamper and sander of spherical mirror spherical surface corase grinding device have been all made of completely new structure design, are set using this kind
After meter, clamper can carry out clamping to various types of eyeglasses by eyeglass collet；Furthermore sander can be according to clamping
Eyeglass carries out angular adjustment, so that the spherical surface of the polishing spherical surface and eyeglass of grinding head be enable to be fitted and connected；And then it solves existing
Have corase grinding device have the problem of can only polishing single model spherical mirror；Meet the needs of enterprise's production and application.
Detailed description of the invention
Fig. 1 is the overlooking structure diagram of the utility model；
Fig. 2 is the structural schematic diagram of the clamper of the utility model；
Fig. 3 is the structural schematic diagram of the eyeglass collet of the utility model；
Fig. 4 be Fig. 3 in A-A to structural schematic diagram；
Fig. 5 is the enlarged structure schematic diagram in Fig. 4 at E；
Fig. 6 is the structural schematic diagram of B-B direction in Fig. 4；
Fig. 7 is the schematic view of the front view of the utility model；
Fig. 8 be Fig. 7 in C-C to structural schematic diagram；
Fig. 9 be Fig. 8 in D-D to structural schematic diagram.
In figure: 1, rack, 2, clamper, 3, sander, 4, slide, 5, driving motor, 6, eyeglass collet, 7, push gas
Cylinder, 8, cross slide way, 9, transmission shaft, 10, rotary joint, 11, driving gear, 12, transmission gear, 13, venting flow path, 14, dress
With bottom plate, 15, clamping jaw, 16, fastening spring, 17, resetting piston, 18, guide chute, 19, guide runner, 20, plunger shaft, 21,
Pitch brace, 22, air passage, 23, grip flange, 24, assembly pivoted frame, 25, polishing motor, 26, grinding head, 27, reversing shaft,
28, tumbler gear, 29, positioning gear, 30, support shaft, 31, adjusting seat, 32, adjustment bar, 33, taper gear pair, 34, adjustment hand
Wheel, 35, arc through hole.
Specific embodiment
Spherical mirror spherical surface corase grinding device is made of rack 1, clamper 2 and sander 3；Clamper 2 is by slide 4, driving
Motor 5, eyeglass collet 6 and push cylinder 7 constitute (referring to Figure of description 2)；It is led in rack 1 by the transverse direction of skewed setting
The sliding of rail 8 is equipped with slide 4；4 side of slide is equipped with push cylinder 7；The piston rod of push cylinder 7 is connect with slide 4；Push cylinder
Slide 4 can be driven to move back and forth on cross slide way 8 when 7 work.
Transmission shaft 9 is equipped with by bearing block on slide 4；It is attached referring to specification that transmission shaft 9 is internally provided with venting flow path 13(
Fig. 2), 9 one end of transmission shaft is connect by rotary joint 10 with extraneous air compression system；Extraneous air compression system by rotary joint 10 with
Venting flow path 13 is connected to；Compressed air can be sent to venting flow path 13 by rotary joint 10 when working by extraneous air compression system
In.The other end of venting flow path 13 is connected to eyeglass collet 6.
By driving motor 5 equipped with driving gear 11 on the slide 4 of 9 side of transmission shaft；It drives on gear 11 and transmission shaft 9
The engagement connection of transmission gear 12 of assembly (referring to Figure of description 2).When driving motor 5 drives driving gear 11 to work, driving
Gear 11 can drive transmission shaft 9 to rotate synchronously by transmission gear 12.
The other end of transmission shaft 9 is equipped with eyeglass collet 6(referring to Figure of description 2)；Eyeglass collet 6 by mounting bedplate 14,
Clamping jaw 15, fastening spring 16 and resetting piston 17 constitute (referring to Figure of description 3,4 and 5).
One end of transmission shaft 9 is fixed with mounting bedplate 14；The front end face of mounting bedplate 14 passes through guide chute 18 and guiding
Sliding block 19 is equipped with multiple clamping jaws 15 in divergent shape sliding.
Guide runner 19 is fixed with inside each clamping jaw 15；Each clamping jaw 15 passes through guide runner 19 and the sliding peace of guide chute 18
Mounted in the front end face of mounting bedplate 14；Each clamping jaw 15 can mutually be drawn close in radial directions along guide chute 18 when working or phase
Mutually separation.
Each fan-shaped structure of clamping jaw 15；Grip flange 23(is provided on the outer end periphery of each clamping jaw 15 referring to explanation
Book attached drawing 3 and 4)；After spherical mirror green body to be processed is placed on the inside between each clamping jaw 15 when work, each clamping jaw 15 is mutually
It can be fixedly clamped on the circumferencial direction of spherical mirror green body by grip flange 23 when drawing close.
Since each clamping jaw 15 is separated independently of each other, and each clamping jaw 15 has certain stroke on guide chute 18,
Therefore it can carry out clamping to various types of spherical mirror green bodies in stroke range；It thus can be convenient for the corase grinding device to more
The spherical mirror green body of kind model is polished.
Arrangement forms circular between each clamping jaw 15；The surface of each clamping jaw 15 is provided with inner concave arc surface.Inner concave arc surface is set
Purpose be: so as to be fitted and connected when the inner concave arc surface work of each clamping jaw 15 with the inner surface of clamping workpiece, so as to avoid
It completes the problem of shaking after assembling.
Referring to Figure of description 5 and 6) 18 inside of each guide chute is respectively in being oppositely arranged plunger shaft 20(；Each plunger shaft
Pitch brace 21 is equipped with by the resetting piston 17 of activity installation in 20；One end of pitch brace 21 extends to guide chute 18
Inside is simultaneously fixedly connected with guide runner 19 (referring to Figure of description 5 and 6)；Each plunger shaft 20 can when moving in plunger shaft 20
It drives guide runner 19 to move together by pitch brace 21, and then achievees the purpose that each clamping jaw 15 is driven to move.
Fastening spring 16 is provided in the guide chute 18 of each 19 top of guide runner；The inside of each plunger shaft 20 leads to respectively
Air passage 22 is crossed to be connected with the venting flow path 13 of transmission shaft 9.By venting flow path 13 and it can lead to when the work of extraneous air compression system
Compressed air is delivered in plunger shaft 20 by air flue 22, and pushes resetting piston 17 to move in plunger shaft 20 by air pressure, such as
This can achieve the purpose that control resetting piston 17 and act by controlling the inflation of extraneous air compression system or losing heart.
Clamper 2 and sander 3(are obliquely provided in rack 1 referring to Figure of description 1).Clamper is arranged such
2 and the purpose of sander 3 be: so that when work the spherical mirror green body and grinding head 26 of 6 clamping of eyeglass collet in eccentric setting,
To enabling the inner surface of grinding head 26 and the surface of spherical mirror green body when work to fit, and then when reaching mutual rotation,
The purpose for spherical mirror billet surface of polishing.
Sander 3 is by assembly pivoted frame 24, polishing motor 25, grinding head 26, reversing shaft 27, tumbler gear 28 and positioning gear
29 constitute (referring to Figure of description 1 and 7).
Assembly pivoted frame 24(is equipped with referring to 7 He of Figure of description by the support shaft 30 being fixedly mounted with and bearing block activity in rack 1
8)；It can be rotated around support shaft 30 when assembling 24 stress of pivoted frame.
The upper end for assembling pivoted frame 24 is equipped with grinding head 26 by polishing motor 25；Polishing motor 25 can drive polishing when working
First 26 rotate synchronously.Grinding head 26 is in be oppositely arranged with eyeglass collet 6；Grinding head 26 is in bowl structure；The interior table of grinding head 26
Face is provided with polishing spherical surface.Grinding head 26 polishes to the surface of spherical mirror green body by spherical surface of polishing when work.
The model of the corresponding grinding head 26 of various model spherical mirror green bodies is different；The arc arc of the polishing spherical surface of grinding head 26
Degree is corresponding with the corresponding spherical curvature of spherical mirror green body, the surface of polishing spherical surface and spherical mirror green body when can so make work
It fits, to further increase grinding accuracy.
Reversing shaft 27(is equipped with referring to Figure of description 8 by the rotation of adjusting seat 31 being fixedly mounted on assembly pivoted frame 24)；Commutation
It is free to rotate when 27 stress of axis.
By bearing block equipped with adjustment bar 32 in the adjusting seat 31 of 27 upper end side of reversing shaft；One end of adjustment bar 32 passes through
Taper gear pair 33 is connected with the upper end of reversing shaft 27；The other end of adjustment bar 32 is fixed with adjustment handwheel 34；Rotation adjustment
When handwheel 34, adjustment handwheel 34 can drive 27 rotation of reversing shaft by adjusting bar 32 and taper gear pair 33.
The lower end of reversing shaft 27 extends to the side of support shaft 30 (referring to saying after passing through the arc through hole 35 in rack 1
Bright book attached drawing 8 and 9)；The arc center of arc through hole 35 and the center of support shaft 30 coincide.Arc through hole is arranged such
35 purpose is: so that assembly pivoted frame 24 drives reversing shaft 27 in 30 rotation process of support shaft；Reversing shaft 27 can be
The inside of arc through hole 35 moves freely, and when so as to avoid arc through hole 35 being other shapes, reversing shaft 27 is hindered to transport
The generation of dynamic problem.
The lower end of reversing shaft 27 is fixed with tumbler gear 28；The positioning gear 29 being fixedly mounted on tumbler gear 28 and support shaft 30
Engagement connection.In 27 rotation process of reversing shaft, by tumbler gear 28, pivoted frame 24 is assembled in driving under the cooperation of positioning gear 29
It is rotated around support shaft 30.
When the spherical mirror spherical surface roughly grinds device work, extraneous air compression system is first turned on, extraneous air compression system passes through ventilation
Compressed air is delivered in plunger shaft 20 by runner 13 and air passage 22, and compressed air pushes resetting piston by the pressure of itself
17 are displaced outwardly in plunger shaft 20；During resetting piston 17 is displaced outwardly, 19 grams of guide runner are driven by pitch brace 21
It is displaced outwardly after taking fastening spring 16, to make guide runner 19 that each clamping jaw 15 be driven to be separated from each other, when each clamping jaw 15 is separated into
When certain position is motionless, by spherical mirror green body to be processed, it is placed on the inside of each clamping jaw 15, is then shut off extraneous air compression system
It is allowed to discouraged, fastening spring 16 drives each clamping jaw 15 mutually to draw close by guide runner 19 at this time, and finally by spherical mirror green body
Be fixedly clamped, in this course due to fastening spring 16 be synchronization action therefore its spherical mirror green body can be clamped in eyeglass
The middle part of collet 6 is overlapped the center of spherical mirror green body and the center of eyeglass collet 6.
After spherical mirror green body is fixedly clamped, starting push cylinder 7 make its drive slide 4 transversely guide rail 8 move right to
Designated position；The handwheel 34 of rotation adjustment at this time, makes it through adjustment bar 32 and taper gear pair 33 drives 27 rotation of reversing shaft；It changes
Into 27 rotation process of axis, by tumbler gear 28, driving assembles pivoted frame 24 around 30 turns of support shaft under the cooperation of positioning gear 29
It is dynamic.Polishing motor 25 and grinding head 26 will be driven to rotate synchronously in assembly 24 rotation process of pivoted frame；When the polishing ball of grinding head 26
The outer end face in face and the central contact of spherical mirror green body, when the inner wall for spherical surface of polishing is bonded with the outer surface of spherical mirror green body；I.e.
It stops operating and adjusts handwheel 34.
Subsequent start-up polishing motor 25 and driving motor 5；Pass through driving gear 11 and transmission gear when driving motor 5 works
12 drive transmission shaft 9 to rotate；The rotation of spherical mirror green body is driven by eyeglass collet 6 in 9 rotation process of transmission shaft；It beats at the same time
Electric mill machine 25 drives the rotation of 26 synchronous backward of grinding head, so can complete spherical mirror green body by the polishing spherical surface of grinding head 26
The polishing work of spherical surface.
After a period of time, polishing motor 25 and driving motor 5 are closed, starting push cylinder 7 makes it that slide 4 be driven to reset,
It then opens extraneous air compression system and removes the spherical mirror green body that polishing finishes, then change new spherical mirror base to be polished
Body, such corase grinding device can enter next working cycles.
As a kind of improvement of the utility model, remover liquid nozzle can be set in the rack 1 of 26 two sides of grinding head, so that
In the corase grinding device bruting process, remover liquid nozzle can spray cleaning solution, cleaning solution can in time by the scrap polished into
Row cleaning, avoids it and is attached to spherical mirror billet surface, influence the generation of grinding accuracy problem.
Spherical mirror spherical surface corase grinding apparatus structure is simple, ingenious in design, can polish various types of spherical mirrors；
Solve the problems, such as existing can only polishing single model spherical mirror of having of corase grinding device；Meet enterprise's production and application
Needs.
Claims (7)
1. a kind of spherical mirror spherical surface roughly grinds device, it is made of rack (1), clamper (2) and sander (3)；Rack is on (1)
It is skewed to be provided with clamper (2) and sander (3)；It is characterized by: the clamper (2) is by slide (4), driving motor
(5), eyeglass collet (6) and push cylinder (7) are constituted；It is equipped in rack (1) by cross slide way (8) sliding of skewed setting
Slide (4)；Slide (4) side is equipped with push cylinder (7)；The piston rod of push cylinder (7) is connect with slide (4)；On slide (4)
Transmission shaft (9) are housed by bearing block；One end of transmission shaft (9) is equipped with eyeglass collet (6)；Transmission shaft (9) other end passes through rotation
Adapter (10) is connect with extraneous air compression system；By driving motor (5) equipped with driving on the slide (4) of transmission shaft (9) side
Gear (11)；The transmission gear (12) assembled in driving gear (11) and transmission shaft (9) engages connection.
2. a kind of spherical mirror spherical surface according to claim 1 roughly grinds device, it is characterised in that: in the transmission shaft (9)
Portion is provided with venting flow path (13), and one end of venting flow path (13) is connected to by rotary joint (10) with extraneous air compression system；It is logical
The other end of flow channel (13) is connected to eyeglass collet (6).
3. a kind of spherical mirror spherical surface according to claim 2 roughly grinds device, it is characterised in that: the eyeglass collet (6)
It is made of mounting bedplate (14), clamping jaw (15), fastening spring (16) and resetting piston (17)；One end of transmission shaft (9) is fixed with
Mounting bedplate (14)；The front end face of mounting bedplate (14) is by guide chute (18) and guide runner (19) in divergent shape sliding dress
There are multiple clamping jaws (15)；It is respectively in be oppositely arranged plunger shaft (20) on the inside of each guide chute (18)；Lead in each plunger shaft (20)
The resetting piston (17) for crossing activity installation is equipped with pitch brace (21)；One end of pitch brace (21) extends to guide chute
(18) it is fixedly connected inside and with guide runner (19)；Clamping is provided in guide chute (18) above each guide runner (19)
Spring (16)；The inside of each plunger shaft (20) passes through air passage (22) respectively and is connected with the venting flow path (13) of transmission shaft (9).
4. a kind of spherical mirror spherical surface according to claim 3 roughly grinds device, it is characterised in that: in each clamping jaw (15)
Portion is fixed with guide runner (19)；Each clamping jaw (15) is slidably mounted on assembly bottom by guide runner (19) and guide chute (18)
The front end face of plate (14)；Each fan-shaped structure of clamping jaw (15)；Grip flange is provided on the outer end periphery of each clamping jaw (15)
(23)；Arrangement forms circular between each clamping jaw (15)；The surface of each clamping jaw (15) is provided with inner concave arc surface.
5. a kind of spherical mirror spherical surface according to claim 4 roughly grinds device, it is characterised in that: the sander (3) by
Assemble pivoted frame (24), polishing motor (25), grinding head (26), reversing shaft (27), tumbler gear (28) and positioning gear (29) structure
At；By the support shaft (30) being fixedly mounted with and bearing block activity equipped with assembly pivoted frame (24) in rack (1)；Assemble the upper of pivoted frame (24)
End is equipped with grinding head (26) by polishing motor (25)；Grinding head (26) is in be oppositely arranged with eyeglass collet (6)；Assemble pivoted frame
(24) reversing shaft (27) are equipped with by adjusting seat (31) rotation being fixedly mounted on；In the adjusting seat (31) of reversing shaft (27) upper end side
By bearing block equipped with adjustment bar (32)；The one end for adjusting bar (32) passes through the upper end of taper gear pair (33) and reversing shaft (27)
It is connected；The other end of adjustment bar (32) is fixed with adjustment handwheel (34)；The lower end of reversing shaft (27) passes through the arc on rack (1)
The side of support shaft (30) is extended to after shape through hole (35)；The lower end of reversing shaft (27) is fixed with tumbler gear (28)；Commutation
The positioning gear (29) being fixedly mounted on gear (28) and support shaft (30) engages connection.
6. a kind of spherical mirror spherical surface according to claim 5 roughly grinds device, it is characterised in that: the arc through hole
(35) arc center and the center of support shaft (30) coincide.
7. a kind of spherical mirror spherical surface according to claim 6 roughly grinds device, it is characterised in that: the grinding head (26) is in
Bowl structure；The inner surface of grinding head (26) is provided with polishing spherical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821392599.8U CN208826239U (en) | 2018-08-28 | 2018-08-28 | A kind of spherical mirror spherical surface corase grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821392599.8U CN208826239U (en) | 2018-08-28 | 2018-08-28 | A kind of spherical mirror spherical surface corase grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208826239U true CN208826239U (en) | 2019-05-07 |
Family
ID=66310885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821392599.8U Expired - Fee Related CN208826239U (en) | 2018-08-28 | 2018-08-28 | A kind of spherical mirror spherical surface corase grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208826239U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110973802A (en) * | 2019-11-27 | 2020-04-10 | 衢州学院 | Grinding head device of nail grinder |
| CN111761473A (en) * | 2020-07-22 | 2020-10-13 | 昆山建荣模具标准件有限公司 | Automatic grinding equipment for die parts |
| CN112192343A (en) * | 2020-10-12 | 2021-01-08 | 中国航发哈尔滨轴承有限公司 | Finish machining method for end surface great arc of radial thrust bearing ring |
| CN117564915A (en) * | 2023-12-29 | 2024-02-20 | 重庆博昶电子科技有限公司 | Multidirectional polishing equipment for notebook shell |
-
2018
- 2018-08-28 CN CN201821392599.8U patent/CN208826239U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110973802A (en) * | 2019-11-27 | 2020-04-10 | 衢州学院 | Grinding head device of nail grinder |
| CN111761473A (en) * | 2020-07-22 | 2020-10-13 | 昆山建荣模具标准件有限公司 | Automatic grinding equipment for die parts |
| CN112192343A (en) * | 2020-10-12 | 2021-01-08 | 中国航发哈尔滨轴承有限公司 | Finish machining method for end surface great arc of radial thrust bearing ring |
| CN117564915A (en) * | 2023-12-29 | 2024-02-20 | 重庆博昶电子科技有限公司 | Multidirectional polishing equipment for notebook shell |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 Termination date: 20210828 |
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| CF01 | Termination of patent right due to non-payment of annual fee |